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/*
 * Copyright 2016 Objectos, Fábrica de Software LTDA.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.objectos.schema;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.lang.model.element.Modifier;

import com.squareup.javapoet.AnnotationSpec;
import com.squareup.javapoet.TypeSpec;

/**
 * @author [email protected] (Marcio Endo)
 */
class SchemaColumnDef {

  private final ColumnDef column;

  private SchemaColumnDef(ColumnDef column) {
    this.column = column;
  }

  public static SchemaColumnDef of(ColumnDef column) {
    return new SchemaColumnDef(column);
  }

  public void accept(TypeSpec.Builder type) {
    type.addType(innerAnnotationTypeSpec());
  }

  TypeSpec innerAnnotationTypeSpec() {
    return TypeSpec.annotationBuilder(column.identifier())
        .addModifiers(Modifier.PUBLIC, Modifier.STATIC)
        .addAnnotation(retention())
        .addAnnotation(target())
        .build();
  }

  private AnnotationSpec retention() {
    return AnnotationSpec.builder(Retention.class)
        .addMember("value", "$T.$L", RetentionPolicy.class, RetentionPolicy.RUNTIME)
        .build();
  }

  private AnnotationSpec target() {
    return AnnotationSpec.builder(Target.class)
        .addMember("value", "{ $T.$L, $T.$L }",
            ElementType.class, ElementType.METHOD,
            ElementType.class, ElementType.PARAMETER)
        .build();
  }

}